Remember that both Sasuke and Naruto are genin.
If kishi plans to show us Sasuke vs Naruto(which we have been waiting for ages), the single possibility after this plot twist is another arc.
Would you enjoy this fight, if it happens? Maybe some characters like Konohamaru will have some more developement too.
I would really enjoy it, but I dont see it happening in a real place. Their both power is kage-like and will surely blow up some mountains.